Ostin Technology Group Co., Ltd. - Resignation of Chief Technology Officer

Ostin Technology Group Co., Ltd. announced that Xiaodong Zhai has resigned from his position as Chief Technology Officer (CTO), effective February 28, 2026. The resignation is for personal reasons and is not due to any disagreements with the Company. As of the filing date, the Company has not yet appointed a new CTO. The filing is made on Form 6-K, reporting this change to the SEC.